North American Birds

VOLUME 70 NO3-NO4 2019

A Quarterly Journal of Ornithological Record Published by the American Birding Association. The mission of the journal is to provide a complete overview of the changing panorama of our continent’s birdlife.

Issue link: http://nab.aba.org/i/1115839

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N O R T H A M E R I C A N B I R D S 384 in early spring than late summer/fall, were 5 km off Santa Catalina I. 14 Mar (CR) and 5 km off Mission Bay, San Diego 22 Apr (CK). Unexpected were an adult female Magnificent Frigatebird over Morro Bay 15 May (JSR), an immature perched on a boat at Santa Barbara I. 30 May (BAS) and an immature over La Jolla 31 May (TABl), since this species is a rare late summer visitor, with the earliest normally no sooner than mid-June. An adult Blue-footed Booby seen from Carlsbad, San Diego flying north along the coast 18 Mar (MSa) was un - expected. Numbers of Brown Boobies along the coast have declined substantially with de - creasing water temperatures, but 68 were still at Anacapa I. 4 Apr (AJS) and one off Morro Bay 1 Mar (TME) was the northernmost. Single Brown Pelicans on the San Bernardino portion of Lake Havasu 12 Mar (DVanP), at Tecopa, Inyo 12 Apr (CMcC) and C.L. 27 May-1 Jun (RAB) were far inland at an unusual time of the year. HERONS THROUGH PUFFINS An American Bittern at Nipton, San Bernardino 28 May (DVanP) was at an unexpected location in the east Mojave Desert. A Tricolored Heron on south San Diego Bay, San Diego 18 Apr (DDiT) is the first in California in 4 years. The only Yellow-crowned Night-Heron known away from areas of residence in San Diego and Ventura were a long-staying adult in San Pedro, Los An - geles 8 Dec-5 May (GC), an immature there 22 May (DS) and up to three in Carpinteria, Santa Barbara 26-30 Apr (GK, JDa). A Glossy Ibis that remained on the Los Angeles River in the Sepulveda Basin 24 May-6 Jun (MSt) provided the second record for Los Angeles. A Black Vulture at Laguna L. in San Luis Obispo, San Luis Obispo 28 Mar (TME) was believed to be the same bird present off and on in this general area since February 2013. A Swallow-tailed Kite flying north along the coast over Imperial Beach at 9:35 am on 22 Apr (DDr, DG) was still following the coast about 95 km to the north at Camp Pendleton, San Diego 4 hours later (JRu and SV), and is only the second recorded in California. An imm. Common Black Hawk at the southwest cor - ner of Camp Pendleton 2 Mar (JMcM) provides the first record for San Diego and the coast of S. California. Single Harris's Hawks, sporadic visitors-breeders to Southern California, were near Blythe, Riverside 12 Apr (LH), at Borrego Springs 11-19 Apr (HC, RT) and in Ramona, San Diego 25 Apr (NC). Only three migrant Broad-winged Hawks were reported, with sin - gle birds near Garey and in the Sierra Madre west of New Cuyama in Santa Barbara on 16 Apr (JDe, TLT), and one more inland over Mo - rongo Valley, San Bernardino 22 Apr (KL). Close to 9,000 Swainson's Hawks were counted mi - Guy McCaskie Kimball L. Garrett –––––––––––––––––––––––––––––––––––––– SPRING 2016 –––––––––––––––––––––––––––––––––––––– T his spring followed another winter with well below normal precipitation, and rain that did occur during the spring period fell mainly on the northwest coast in March, on the deserts in April, and in coastal and montane San Diego County in May. Tem - peratures were above normal in March but at or below normal in April and May. In general passerine migration was unremarkable, but some amazing rarities punctuated the period. These highlights included California's first Purple Sandpiper at the Salton Sea and its first Buff-breasted Flycatcher on the Kern County desert, along with its second Swallow-tailed Kite in coastal San Diego County. Adding to these statewide rarities were southern Cali - fornia's first spring Red-throated Pipits and its second spring White Wagtail, its first well-doc - umented spring Yellow Rail in a hundred years, and an apparent Cordilleran Flycatcher, here - tofore unknown in migration in the Region. Abbreviations: B.S. (Butterbredt Spring at the southern end of the Sierra Nevada above Cantil, e. Kern); C.L. (China Lake Naval Air Weapons Station, extreme n.e. Kern); E.A.F.B. (Edwards Air Force Base, s.e. Kern); F.C.R. (Furnace Creek Ranch, Death Valley National Park, Inyo); G.H.P. (Galileo Hill Park in extreme e. Kern); N.E.S.S. (north end of the Salton Sea, River - side); P.P. (Piute Ponds on Edwards Air Force Base, n.e. Los Angeles); S.E.S.S. (south end of the Salton Sea, Imperial); S.F.K.R.P (South Fork Kern River Preserve near Weldon, Kern); S.J.W.A. (San Jacinto Wildlife Area near Lakev - iew, Riverside); V.A.F.B. (Vandenberg Air Force Base in n.w. Santa Barbara). Museum collec - tions abbreviated in the text are: LACM (Natu- ral History Museum of Los Angeles County). Because most rarities in s. California are seen by multiple observers, only the observer(s) ini - tially finding and/or identifying the bird are in- cluded. Documentation for species on the Cali- fornia Bird Records Committee (CBRC) review list (see www.californiabirds.org) is forwarded to the CBRC and archived at the Western Foun - dation of Vertebrate Zoology in Camarillo. WATERFOWL THROUGH PELICANS Lower than expected numbers of Brant were found at the Salton Sink, and single birds at Borrego Springs, San Diego 17-21 Apr (WTH) and C.L. 14 May-9 Jun (SLS) were the only other two reported inland. The only Surf Sco - ters reported inland away from the Salton Sink were 4 on Lower Otay L. San Diego 6-7 Mar (MSa), one on L. Murray, San Diego 7-12 Mar (DeM) and single birds at scattered locations around Borrego Springs on 10, 14 & 19 Mar (PA, WTH, GG) that were all believed to be mi - grants moving northwestward from wintering areas on the Gulf of California; three at Harper Dry Lake, San Bernardino 6 May (SLS) were evidently moving northward east of the Sierra Nevada. Late staying wintering Black Scoters included one in Imperial Beach, San Diego to 2 May (PEL), and Long-tailed Ducks included single birds at Morro Bay, San Luis Obispo to 28 Apr (MDH) and at Goleta, Santa Barbara 27 May (JL). A Pacific Loon at S.E.S.S. (Obsidian Butte) 18 May (GMcC) was inland where con - sidered rare. A Red-necked Grebe at Los Penas- quitos Lagoon, San Diego 9-31 May + (SP) was not only unusually far south, but also attempt - ing to summer locally. Paul E. Lehman and others on cruise ships traveling northward about 40 miles off the coast reported 2 Murphy's Petrels off Santa Bar - bara and another off San Luis Obispo, along with a Hawaiian Petrel off Santa Barbara, and 31 Cook's Petrels in each of those counties on 24 April, and 12 more Cook's Petrels 35 km sw of San Miguel I. 8 May (MF) - these three Pterodro - ma are proving to be of annual occurrence over these waters at this time of the year. A Manx Shearwater, rare in S. California waters, was with about 500 feeding Black-vented Shearwa - ters 3 km off La Jolla, San Diego 4-5 Mar (MSa, DP), another was 5 km off Batiquitos Lagoon, San Diego 20 Mar (CAM) and two together were seen from La Jolla 11 Apr (PEL). A Fork-tailed Storm-Petrel seen from La Jolla 2-3 May (GN) was at the southern extreme of this species' range. About 5000 Black Storm-Petrels "raft - ing" at the 30-Mile Bank off San Diego 18 Apr (DP) was a large number for this early in the year, and a Least Storm-Petrel with them that same day (CAM) establishes the earliest date in California waters for this late-summer visitor. Single Red-billed Tropicbirds, much rarer Southern California

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